Rav Chisda (Hebrew: רב חסדא) was a Jewish Talmudist who lived in Kafri, Babylonia, near what is now the city of Najaf, Iraq. He was an amora of the third generation (died in ca 320 CE at the age of ninety-two), mentioned frequently in the Talmud.
Rav Chisda descended from a priestly family. He studied under Rav, who was his principal teacher and after the latter's death he attended the lectures of Rav Huna, a companion of the same age. The pair were called "the Hasidim of Babylon". Rav Chisda was also among those called Tzadikim, those who could bring down rain by their prayers. At first he was so poor that he abstained from vegetables because they increased his appetite and when he walked in thorny places he raised his garments, saying: "The breaches in my legs will heal of themselves but the breaches in my garments will not". At the age of sixteen he married the daughter of Hanan b. Raba and together they had seven or more sons and two daughters. Later, as a brewer, he became very wealthy. One of his pupils, Rava, became his son-in-law.
Rav Chisda was a great casuist, his acute mind greatly enhanced the fame of Rav Huna's school at Sura, but his very acuteness indirectly caused a rupture between himself and Rav Huna. The separation was brought about by a question from Rav Chisda as to the obligations of a disciple toward a master to whom he is indispensable. Rav Huna saw the point and said, "Chisda, I do not need you; it is you that needs me!". Forty years passed before they became reconciled. Rav Chisda nevertheless held Rav Huna in great esteem, and although he had established a school built at his own expense in Mata Mehasya four years before Rav Huna's death, he never published any decision during the Rav Huna's lifetime.Rav Huna came to recognize Rav Chisda's merit later and recommended his son Rabbah bar Rav Huna to attend his lectures.